Add text notes in 3D View

[Gaspar]

Suggestion:
A new feature that enables to add notes/comments text in the 3D view. Using an entity-based approach e.g., '_tb_notes' that only works in tb and displays text. Users can add notes to this entity, providing information, comments, or reminders directly within the editor.
Example:

{
"classname": "_tb_notes"
"_tb_text": "This area needs optimization"
"_tb_text_size": "10"
"origin": "0 0 0"
"angles": "0 0 0" 
}

Use cases:

• Allows mappers to add TODO comments for the map. This can serve as a useful reminder for ongoing or future mapping tasks

• Improves mapping collaboration by facilitating communication within the editor. Mappers can leave notes, suggestions or explanations directly within the map.

Additional Considerations:

• Implement a toggle option to hide/show comments.

References:
Hammer++ has editor_text, which is similar to point_worldtext (https://developer.valvesoftware.com/wiki/Point_worldtext), but is an exclusive in-editor entity and doesn't work in-game.